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38  •  Illustrations  -  Refrigeration Line Sizing - Ice Cream

ILLUSTRATIONS

 FIGURE 21 

Refrigeration Line Sizing - Ice Cream

40°F

50°F

60°F

70°F

80°F

90°F

100°F

120°F

0.95

0.94

0.94

0.95

0.97

1.00

1.05

1.23

Liquid Correction Factors for Liquid Line Sizing Table - Use Maximum Liquid Temperature

For maximum liquid temperatures other than 90°F, multiply rated Btuh by liquid correction factor before using the Liquid Line Sizing Table

Maximum Liquid Temperature:

Liquid Correction Factor:

110°F

1.12

Suction Horizontal Line Sizing

Up to 50 equivalent feet

Up to 100 equivalent feet

Up to 150 equivalent feet

Up to 200 equivalent feet

90°F Liquid, 2°F Pressure Drop

90°F Liquid, 2°F Pressure Drop

90°F Liquid, 2°F Pressure Drop

90°F Liquid, 2°F Pressure Drop

From

To

Horizontal

From

To

Horizontal

From

To

Horizontal

From

To

Horizontal

0

1,420

3/8

++

0

970

3/8

++

0

770

3/8

++

0

660

3/8

++

1,430

3,360

1/2

++

980

2,290

1/2

++

780

1,840

1/2

++

670

1,560

1/2

++

3,370

6,300

5/8

++

2,300

4,320

5/8

++

1,850

3,450

5/8

++

1,570

2,950

5/8

++

6,310 10,500

7/8

4,330

7,180

7/8

3,460

5,750

7/8

2,960

4,910

7/8

10,510 16,600

7/8

7,190 11,400

7/8

5,760

9,120

7/8

4,920

7,790

7/8

16,610 33,600

1-1/8

11,410 23,100

1-1/8

9,130 18,600

1-1/8

7,800 15,900

1-1/8

33,610 58,400

1-3/8

23,110 40,300

1-3/8

18,610 32,400

1-3/8

15,910 27,700

1-3/8

58,410 92,300

1-5/8

40,310 63,700

1-5/8

32,410 51,200

1-5/8

27,710 43,800

1-5/8

63,710 132,000

2-1/8

51,210 107,000

2-1/8

43,810 91,000

2-1/8

For 1°F pressure drop, multiply rated BTU by 1.44 before using the Suction Horizontal Line Sizing Table.

++

Larger suction horizontal line size may be used, if preferred.

3/4 horizontal suction line may be used to reduce cost.

For rated Btuh:

For rated Btuh:

For rated Btuh:

For rated Btuh:

40°F

50°F

60°F

70°F

80°F

90°F

100°F

120°F

0.72

0.76

0.80

0.86

0.92

1.00

1.10

1.38

Liquid Correction Factors for Suction Horizontal Line Sizing Table - Use Maximum Liquid Temperature

For maximum liquid temperatures other than 90°F, multiply rated Btuh by liquid correction factor before using the Suction Horizontal Line Sizing Table

Maximum Liquid Temperature:

Liquid Correction Factor:

110°F

1.22

Suction Vertical Riser Sizing

Maximum Allowable Riser Size For Adequate Oil Return*

70°F Minimum Liquid Temperature, using 0.35 PSI Per 100 Feet (per 2006 ASHRAE Handbook - Refrigeration).
For rated Btuh:

From

To

Vertical

1,210

2,280

1/2

2,290

3,810

5/8

3,820

6,050

5/8

6,060 12,400

7/8

12,410 21,600

1-1/8

21,610 34,300

1-3/8

34,310 71,300

1-5/8

71,310 127,000

2-1/8

* If horizontal line size is smaller than specified vertical riser size, the smaller size may be used for both.

3/4 suction riser may be used to reduce pressure drop.

It may be necessary to make adjustments to compensate for 

special situations which cause the actual Btuh to differ from 

the rated Btuh of the cases. 
All liquid line and suction line sizes are inches, refrigeration O.D.
Subject to change without notice.

R-404 Line Sizing Tables for Zero Zone VZ/VLC Ice Cream Freezer (-16°F Evaporator Temperature)

Liquid Line Sizing - Electric Defrost*

Up to 50 equivalent feet

Up to 100 equivalent feet

Up to 150 equivalent feet

Up to 200 equivalent feet

90°F Liquid, 2°F Pressure Drop

?

90°F Liquid, 2°F Pressure Drop

?

90°F Liquid, 2°F Pressure Drop

?

90°F Liquid, 2°F Pressure Drop

?

From

To

Liquid Line

From

To

Liquid Line

From

To

Liquid Line

From

To

Liquid Line

0

7,090

1/4

+

0

4,830

1/4

+

0

3,850

1/4

+

0

3,270

1/4

+

7,100 14,600

5/16

+

4,840

9,930

5/16

+

3,860

7,930

5/16

+

3,280

6,750

5/16

+

14,610 26,500

3/8

9,940 18,200

3/8

7,940 14,500

3/8

6,760 12,400

3/8

26,510 62,800

1/2

18,210 43,100

1/2

14,510 34,500

1/2

12,410 29,400

1/2

62,810 117,000

5/8

43,110 80,900

5/8

34,510 64,800

5/8

29,410 55,400

5/8

For hot gas defrost, use a liquid line one size larger than shown.

64,810 108,000

7/8

55,410 92,100

7/8

?

For 1°F pressure drop, multiply rated Btuh by 1.45 before using the Liquid Line Sizing Table.

+

Larger liquid line size may be used (such as 3/8), if preferred.

3/4 liquid line may be used to reduce cost.

For rated Btuh:

For rated Btuh:

For rated Btuh:

For rated Btuh:

Liquid Correction Factors for Suction Vertical Riser Sizing Table - Use 

Liquid Temperature

Multiply rated Btuh by liquid correction factor before using the Suction Vertical Riser Sizing Table

40°F

50°F

60°F

70°F

80°F

90°F

100°F

0.83

0.88

0.94

1.00

1.08

1.17

1.28

PES, 2/1/16

Minimum Liquid Temperature:

Liquid Correction Factor:

SP-0612-02, Rev C

Minimum

Refer back to page 12

Summary of Contents for CRYSTAL MERCHANDISER

Page 1: ...ZERO ZONE CRYSTAL MERCHANDISER FREEZERS With CoolView Doors and ChillBrite LED Lighting INSTALLATION OPERATION MANUAL COMPLIANT 66 0025 REV F APR 2020...

Page 2: ...ical Wiring 13 DEFROSTING 15 General 15 Defrost Settings and Controls 15 Defrost Operation 16 General Notes 16 Limit Thermostat 16 Defrost Heater Element 17 Heater Element Removal 17 Anti Sweat Heater...

Page 3: ...er will extend to the original purchaser prior to shipment a limited extended warranty on the compressor only following expiration of the standard warranty The Seller agrees to repair or exchange at i...

Page 4: ...rigeration technicians If any questions or problems arise call Zero Zone at 800 247 4496 Any change to a Zero Zone product made during the installation start up or at any other time must be submitted...

Page 5: ...Approved AHRI 1200 Performance Rating of Commercial Refrigerated Display Merchandisers and Storage Cabinets ANSI Approved DOE Compliant All U S Sales and U S Territories ASHRAE Standard 72 specifies t...

Page 6: ...pans condensate evaporation pans and hat channel rails are shipped in the case that require the parts Materials for joining cases including caulk joining bolts splices and end filler posts are shippe...

Page 7: ...under the base or channel 9 If you are joining coolers to freezers RVMC cases should be set with a slight backward tilt to offset the forward lean of a fully loaded case When joining a freezer and co...

Page 8: ...blades thicker than 1 3 4 When the case needs to move through an 80 door opening the case is shipped with a 1 base on a wood pallet Remove the case from the pallet to slide the case through the 80 doo...

Page 9: ...er drainage Consult your local codes for minimum requirements Condensate Evaporation System Zero Zone remote cases can be equipped with an automatic condensate evaporation system The system uses a pum...

Page 10: ...loor drains to speed the drying process Replace the kick plates when the floor has dried GLASS SURFACES Cleaning interior glass reduces fogging and increases visibility Wipe down glass or plexiglass m...

Page 11: ...shelves are available and are labeled as such Light Switch The light switch is located on the ceiling on the right hand side of the display case Case Thermometer The cases are shipped with 2 thermomet...

Page 12: ...nd turn the valve stem counterclockwise to decrease superheat Turn the valve stem clockwise to increase superheat Measure the suction line temperature at the expansion valve sensing bulb and compare i...

Page 13: ...cal RVLC30 velocity reading is 400 to 500 feet per minute in a fully packed case after the case has defrosted and pulled down to operating temperature Air curtain velocity in a partially packed displa...

Page 14: ...vacuation Charging After all of the refrigeration piping and system components have been assembled the entire system must be pressurized and checked for leaks When the system is leak free evacuate wit...

Page 15: ...al diagrams for this system All of the display case controls including the disconnect switch and the electronic case controls are installed on the case and pre wired The liquid line solenoid valve is...

Page 16: ...l signal to each case to energize the defrost relay and initiate a defrost in all of the satellite cases A second set of interconnecting wires is connected in series between each of the cases Each cas...

Page 17: ...e length of defrost to vary depending on how much frost is on the coil and the defrost heater voltage Coil frost is a function of shopping patterns stocking habits general door maintenance and ambient...

Page 18: ...serpentine coil is attached to the bottom of the pan to ensure pan and drain defrost The timer starts the hot gas defrost cycle by energizing a solenoid reversing valve or directional valve The hot ga...

Page 19: ...is fastened to the floor on the right hand side of the coil Remove fasteners holding the heater to the floor The U shape defrost heater can be removed by first pulling the front leg of the retaining c...

Page 20: ...llustrations Case Label Information Figure 1 Case Label Information ILLUSTRATIONS Refer back to page 4 Front of Lineup 1 1 1 1 1 2 1 2 Front of Back to Back Lineup 1 1B 1 1B 1 2B 1 2B 1 1A 1 1A 1 2A 1...

Page 21: ...Illustrations Freezer to Cooler Leveling 19 Illustrations 2B Long Case Lineup 2A Short Case Lineup Figure 2 Freezer to Cooler Leveling Refer back to page 4...

Page 22: ...ons Leveling Cases Prior to Joining Illustrations 3C Shim placement at each base 3B Mark floor level differences 3A Measure and mark exact case outline Figure 3 Leveling Cases Prior to Joining Refer b...

Page 23: ...Illustrations RVLC30 Base Locations 21 Illustrations Figure 4 RVLC30 Base Locations Refer back to page 5...

Page 24: ...22 Illustrations RVLC30BB Base Locations Illustrations Figure 5 RVLC30BB Base Locations Refer back to page 5...

Page 25: ...Illustrations Case Squareness 23 Illustrations Figure 6 Case Squareness Refer back to page 5...

Page 26: ...24 Illustrations Shim Placement Illustrations Figure 7 Shim Placement Refer back to page 5...

Page 27: ...Illustrations Shim Orientation 25 Illustrations Figure 8 Shim Orientation Refer back to page 5...

Page 28: ...Illustrations RVLC30BB Wood Planks Illustrations SP 6061 REV A RELEASED BY DATE ECN No REVISION DESCRIPTION No TF 7 22 2015 11038 REVISION INFORMATION Figure 9 RVLC30BB Wood Planks Refer back to page...

Page 29: ...Illustrations Spacer Block 27 Illustrations Figure 10 Spacer Block Refer back to page 6...

Page 30: ...ve amounts of sealant may squeeze out of the case joint The sealant will spread out when the cases are joined 1 Apply 1 4 to 3 8 wide beads of Butyl caulk along the ceiling rear wall and base of the c...

Page 31: ...sive amounts of sealant may squeeze out of the case joint The sealant will spread out when the cases are joined 1 Apply 1 4 to 3 8 wide beads of Butyl caulk along the ceiling rear wall and base of the...

Page 32: ...sion 1 DOOR JOINT BETWEEN CASES CAULK END BRACKETS ARE FACTORY INSTALLED EXPLODED FOR CLARITY 5 3 1 4 4 2 CAULK EDGE BEFORE INSERTING 5 3 2 4 4 1 DOOR END MULLION END MULLION 7 6 5 Attach Item 5 to ri...

Page 33: ...ined before NSF caulking Avoid using excessive Butyl caulk to prevent it from coming out of the joints because Butyl and silicone sealants will not mix That will affect adhesion 2 Apply NSF approved s...

Page 34: ...32 Illustrations Drain Line Illustrations Figure 15 Drain Line Refer back to page 7...

Page 35: ...Illustrations Kick Plates Tinnerman Clips 33 Illustrations Figure 16 Kick Plates Tinnerman Clips Refer back to page 7...

Page 36: ...DECIMAL INCH PER SP 0404 JHZ DRAWN BY UNLESS OTHERWISE USA 53153 110 NORTH OAKRIDGE DRIVE NORTH PRAIRIE WISCONSIN REVISION INFORMATION ITEM NO PART NAME 1 COIL COVER 2 FAN 3 LIQUID LINE 4 SUCTION LINE...

Page 37: ...IMAL INCH ZERO ZONE INC 110 NORTH OAKRIDGE DRIVE NORTH PRAIRIE WISCONSIN USA 53153 DESCRIPTION BY DATE ECN No REVISION DESCRIPTION No JHZ 11 26 2012 9651 REVISE BALLOON 14 DEFROST E REVISION INFORMATI...

Page 38: ...36 Illustrations Electrical Box Illustrations Figure 19 Electrical Box Refer back to page 11...

Page 39: ...0 F Suction Vertical Riser Sizing Maximum Allowable Riser Size For Adequate Oil Return 70 F Minimum Liquid Temperature using 0 35 PSI Per 100 Feet per 2006 ASHRAE Handbook Refrigeration For rated Btuh...

Page 40: ...0 F 1 22 Suction Vertical Riser Sizing Maximum Allowable Riser Size For Adequate Oil Return 70 F Minimum Liquid Temperature using 0 35 PSI Per 100 Feet per 2006 ASHRAE Handbook Refrigeration For rated...

Page 41: ...Illustrations Electric Defrost Wiring Diagram 39 Illustrations Figure 22 Electric Defrost Wiring Diagram Refer back to page 13...

Page 42: ...40 Illustrations Hot Gas Defrost Wiring Diagram Illustrations Figure 23 Hot Gas Defrost Wiring Diagram Refer back to page 13...

Page 43: ...Illustrations Master Satellite Wiring Diagram 41 Illustrations Figure 24 Master Satellite Wiring Diagram Refer back to page 13...

Page 44: ...2020 Zero Zone Inc All Rights Reserved APR 2020 For other technical support please refer to the Technical Resources page at WWW ZERO ZONE COM or contact the Zero Zone Service Department at 800 247 44...

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